There were 23 total nuclear weapons tested at Bikini Atoll between the years of 1946 and 1958. These nuclear weapons caused a great amount of radiation to be leaked into the surrounding areas.
USUSSRUKFrance
The French tested their nuclear weapons in the Sahara desert (before Algeria's independence) and on the Pacific atoll of Mururoa.
India and Pakistan
Currently, nine states possess nuclear weapons.United States - Tested its first nuclear weapon in 1945Russia - Tested its first nuclear weapon in 1949United Kingdom - Tested its first weapon in 1952France - Tested its first weapon in 1960China - Tested its first weapon in 1964India - Tested its first weapon in 1974Pakistan - Tested its first weapon in 1998Israel - Acquired weapons sometime between 1967-1971North Korea - Tested its first weapon in 2009Four states have ended their nuclear programsSouth Africa - de-nuclearized in 1991Belarus, Ukraine, and Kazakhstan - Returned nuclear weapons to Russia in mid-1990s.Nuclear Aspirants, but no nuclear program or weaponsGermany, Canada, Libya, Japan, Argentina, Syria. Sweden, Egypt, South Korea, Switzerland, Iraq, TaiwanFuture nuclear states?IranSee, Peter Beckman et. al, Nuclear Weapons, Nuclear States, and Terrorism (2007), 41.
The US tested nuclear weapons on its own territory including the deserts of the continental southwest US.
Both US & UK.
Antarctica and South America, I think that may be it.
1945 was the first year that a Nuclear bomb was successfully tested then used in combat.
America, Russia, and Korea.
IsraelMaybe Iran, but if so it has not been tested
The first Soviet nuclear weapon was tested in 1949. They have never used one in combat.